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A293458 as a simple table

na(n)
11
21
35
417
577
6437
72957
823117
9204557
102018957
1121977357
12261478157
133374988557
1446964134157
15700801318157
1611162196262157
17189005910310157
183390192763174157
1964212742967590157
201280663747055910157
2126826134832910630157
22588826498721714470157

[1,1,5,17,77,437,2957,23117,204557,2018957,
 21977357,261478157,3374988557,46964134157,
 700801318157,11162196262157,189005910310157,
 3390192763174157,64212742967590157,
 1280663747055910157,26826134832910630157,
 588826498721714470157]